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- goaf gas drainage 采空区瓦斯抽放
- The influence imposed by drainage lane to goaf gas distribution is much larger in goaf's top layer than in underlayer. 泄排巷对采空区瓦斯分布的影响上层比下层更大。
- In order to obtain a good result of gas drainage in gob roof, the control methods of gas from goaf are discussed. 摘要为了在采空区顶板实施瓦斯抽放技术获得较高的瓦斯抽放效果,对采空区瓦斯治理方法进行了探讨。
- The application of the gas drainage technology in Donghai coal mine is introduced, including gas drainage in close coal layer, gas drainage in goaf, gas drainage from coal, and local gas drainage. 介绍瓦斯抽放在东海矿的应用,抽放方式为邻近层抽放、空区抽放、本煤层抽放及局部抽放。
- Transforming Mine Gas Drainage System and Raising Gas Drainage Rate? 粉尘作业人员的饮食要注意什么?
- Gas overflowed in wood road413 of this mine is through the link- roadway caused by goaf gas discrarging. 该矿413机巷后路瓦斯超限是采空区瓦斯通过联络巷泄漏所致。
- The law of goaf gas outburst is summed up.The directed measures are adopted.The obvious effect is obtained. 鄂庄煤矿通过分析总结采空区瓦斯涌出的规律,采取了针对性防治措施,并取得了明显的效果。
- It suggests that studying goaf gas flow patterns applying CFD model is one of the feasible methods. 同时表明:采用CFD模型研究采空区瓦斯流动规律是可行的方法之一。
- Gas overflowed in wood road 413 of this mine is through the link - roadway caused by goaf gas discrarging. 该矿413机巷后路瓦斯超限是采空区瓦斯通过联络巷泄漏所致。
- One of the major problems is that the designed gas drainage schemes have no scientific theon basis. 但是瓦斯抽放方案设计没有科学的理论依据是目前存在的主要问题之一。
- A kind of hydraulics system for CKS-I hydraulic gas drainage drilling rig was designed. 介绍了一种自主设计的CKS-I型全液压瓦斯抽排放钻机的液压系统。
- The practice of gas measuring and gas drainage when shaft developed through gasy seams in Hudi mine is introduced. 介绍了胡底煤矿在竖井开凿遭遇高瓦斯煤层时,进行瓦斯测定和瓦斯抽排的工程实践。
- HDPE with fire retardance and antistatic property has been developed and used to make gas drainage pipe in the coalseams. 研制了具有阻燃及抗静电性能的HDPE,并将其用于制作煤层瓦斯抽放管。
- Research result shows that controlling blasting technique is feasible to improve gas drainage under suction in hardness and low dialyzing coal bed. 研究表明,该技术用于坚硬低透气煤层,提高矿井瓦斯抽放率是可行的。
- The design, apparatus and results of the experiment are shown.The modification of goaf gas emission under the conditions of several common face ventilation systems and airflow quantity is given. 本文介绍了实验方法、装置和结果,提出了关于风量以及常见的几种工作面通风方式对采空区沼气涌出量影响的修正方法和系数。
- Keywords goaf;gas drainage;drainage parameters;Flow the mechanism; 采空区;瓦斯抽放;抽放参数;流动机理;
- Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production. 高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。
- Through the testing research about gas drainage on outsize coal sample, the relativity of coal mass deformation and drainage quantity &time is opened out. 通过大煤样的瓦斯排放试验研究,揭示了顺序加载与逆序加载下的煤体变形与瓦斯排放量以及排放时间的相关性。
- The paper describes the determination of rational location of high-located gas drainage roadways in Laowuji Mine of Panjiang Coal & Electricity (Group)Company. 介绍了盘江煤电(集团)公司老屋基矿高位瓦斯抽放巷道合理位置确定的有关情况。
- It proved that gas drainage with high position bores and elevation bores can both reduce laneway digging work and get fairly good gas extracting result. 实践表明高位抽放与仰角抽放方法相结合,既可减少钻场施工,又有较好的抽放效果。